Stuck lock pin on SMA Tire Carrier

[Centerfire]

I just spent 20 embarrassing minutes at Circuit city trying to exchange a TV..
I have the SMA Tire carrier on the the back.. The damn pin is stuck. I left the H2 out of the barn last night and it is 21 degrees. I guess the damn thing is frozen.. I will have to wait until this evening to put in barn to warm up.. Any body else have a simialar problem and have a cure.. I know what my 1st thought is .. take the SOB off and bungee cord my spare on the Gobi rack. I wish I had ordered the rack with the tire carrier..

Any ideas how to retro the Gobi to keep the spare in one place.

Thanks Mike